package com.mohe.twocode; import java.awt.Color; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import javax.imageio.ImageIO; import jp.sourceforge.qrcode.QRCodeDecoder; import jp.sourceforge.qrcode.data.QRCodeImage; import jp.sourceforge.qrcode.exception.DecodingFailedException; import com.swetake.util.Qrcode; public class TwoDimensionCode implements QRCodeImage { private BufferedImage bufImg = null; public TwoDimensionCode() { } public TwoDimensionCode(BufferedImage bufImg) { this.bufImg = bufImg; } @Override public int getHeight() { return bufImg.getHeight(); } @Override public int getPixel(int x, int y) { return bufImg.getRGB(x, y); } @Override public int getWidth() { return bufImg.getWidth(); } /** * 生成二维码(QRCode)图片 * * @param content * 存储内容 * @param imgPath * 图片路径 */ public void encoderQRCode(String content, String imgPath) { this.encoderQRCode(content, imgPath, "png", 7); } /** * 生成二维码(QRCode)图片 * * @param content * 存储内容 * @param output * 输出流 */ public void encoderQRCode(String content, OutputStream output) { this.encoderQRCode(content, output, "png", 7); } /** * 生成二维码(QRCode)图片 * * @param content * 存储内容 * @param imgPath * 图片路径 * @param imgType * 图片类型 */ public void encoderQRCode(String content, String imgPath, String imgType) { this.encoderQRCode(content, imgPath, imgType, 7); } /** * 生成二维码(QRCode)图片 * * @param content * 存储内容 * @param output * 输出流 * @param imgType * 图片类型 */ public void encoderQRCode(String content, OutputStream output, String imgType) { this.encoderQRCode(content, output, imgType, 7); } /** * 生成二维码(QRCode)图片 * * @param content * 存储内容 * @param imgPath * 图片路径 * @param imgType * 图片类型 * @param size * 二维码尺寸 */ public void encoderQRCode(String content, String imgPath, String imgType, int size) { try { BufferedImage bufImg = this.qRCodeCommon(content, imgType, size); File imgFile = new File(imgPath); if (!imgFile.exists()) { imgFile.mkdirs(); } // 生成二维码QRCode图片 ImageIO.write(bufImg, imgType, imgFile); } catch (Exception e) { e.printStackTrace(); } } /** * 生成二维码(QRCode)图片 * * @param content * 存储内容 * @param output * 输出流 * @param imgType * 图片类型 * @param size * 二维码尺寸 */ public void encoderQRCode(String content, OutputStream output, String imgType, int size) { try { BufferedImage bufImg = this.qRCodeCommon(content, imgType, size); // 生成二维码QRCode图片 ImageIO.write(bufImg, imgType, output); } catch (Exception e) { e.printStackTrace(); } } /** * 生成二维码(QRCode)图片的公共方法 * * @param content * 存储内容 * @param imgType * 图片类型 * @param size * 二维码尺寸 * @return */ private BufferedImage qRCodeCommon(String content, String imgType, int size) { BufferedImage bufImg = null; try { Qrcode qrcodeHandler = new Qrcode(); // 设置二维码排错率,可选L(7%)、M(15%)、Q(25%)、H(30%),排错率越高可存储的信息越少,但对二维码清晰度的要求越小 qrcodeHandler.setQrcodeErrorCorrect('M'); qrcodeHandler.setQrcodeEncodeMode('B'); // 设置设置二维码尺寸,取值范围1-40,值越大尺寸越大,可存储的信息越大 qrcodeHandler.setQrcodeVersion(size); // 获得内容的字节数组,设置编码格式 byte[] contentBytes = content.getBytes("utf-8"); // 图片尺寸 int imgSize = 67 + 12 * (size - 1); bufImg = new BufferedImage(imgSize, imgSize, BufferedImage.TYPE_INT_RGB); Graphics2D gs = bufImg.createGraphics(); // 设置背景颜色 gs.setBackground(Color.WHITE); gs.clearRect(0, 0, imgSize, imgSize); // 设定图像颜色> BLACK gs.setColor(Color.BLACK); // 设置偏移量,不设置可能导致解析出错 int pixoff = 2; // 输出内容> 二维码 if (contentBytes.length > 0 && contentBytes.length < 800) { boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes); for (int i = 0; i < codeOut.length; i++) { for (int j = 0; j < codeOut.length; j++) { if (codeOut[j][i]) { gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3); } } } } else { throw new Exception("QRCode content bytes length = " + contentBytes.length + " not in [0, 800]."); } gs.dispose(); bufImg.flush(); } catch (Exception e) { e.printStackTrace(); } return bufImg; } /** * 解析二维码(QRCode) * * @param imgPath * 图片路径 * @return */ public String decoderQRCode(String imgPath) { // QRCode 二维码图片的文件 File imageFile = new File(imgPath); BufferedImage bufImg = null; String content = null; try { bufImg = ImageIO.read(imageFile); QRCodeDecoder decoder = new QRCodeDecoder(); content = new String(decoder.decode(new TwoDimensionCode(bufImg)), "utf-8"); } catch (IOException e) { System.out.println("Error: " + e.getMessage()); e.printStackTrace(); } catch (DecodingFailedException dfe) { System.out.println("Error: " + dfe.getMessage()); dfe.printStackTrace(); } return content; } /** * 解析二维码(QRCode) * * @param input * 输入流 * @return */ public String decoderQRCode(InputStream input) { BufferedImage bufImg = null; String content = null; try { bufImg = ImageIO.read(input); QRCodeDecoder decoder = new QRCodeDecoder(); content = new String(decoder.decode(new TwoDimensionCode(bufImg)), "utf-8"); } catch (IOException e) { System.out.println("Error: " + e.getMessage()); e.printStackTrace(); } catch (DecodingFailedException dfe) { System.out.println("Error: " + dfe.getMessage()); dfe.printStackTrace(); } return content; } /** * 生成二维码 * * @param filePath * @return */ public static void encoder(String filePath, String deskCode) { String imgPath = filePath + deskCode + ".png"; TwoDimensionCode handler = new TwoDimensionCode(); handler.encoderQRCode(deskCode, imgPath, "png"); } /** * 解析二维码 * * @param filePath * @return */ public static String decoder(String filePath, int deskType, String deskCode) { String imgPath = filePath + deskCode + ".png"; TwoDimensionCode handler = new TwoDimensionCode(); return handler.decoderQRCode(imgPath); } /** * 生成中间带LOG二维码(QRCode)图片 * * @param content * 二维码图片的内容 * @param imgPath * 生成二维码图片完整的路径 * @param ccbpath * 二维码图片中间的logo路径 */ public static int createQRCode(String content, String imgPath, String ccbPath) { try { Qrcode qrcodeHandler = new Qrcode(); qrcodeHandler.setQrcodeErrorCorrect('M'); qrcodeHandler.setQrcodeEncodeMode('B'); qrcodeHandler.setQrcodeVersion(7); // System.out.println(content); byte[] contentBytes = content.getBytes("utf-8"); BufferedImage bufImg = new BufferedImage(140, 140, BufferedImage.TYPE_INT_RGB); Graphics2D gs = bufImg.createGraphics(); gs.setBackground(Color.WHITE); gs.clearRect(0, 0, 140, 140); // 设定图像颜色 > BLACK // gs.setColor(new Color(255, 200, 0)); gs.setColor(Color.BLACK); // 设置偏移量 不设置可能导致解析出错 int pixoff = 2; // 输出内容 > 二维码 if (contentBytes.length > 0 && contentBytes.length < 120) { boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes); for (int i = 0; i < codeOut.length; i++) { for (int j = 0; j < codeOut.length; j++) { if (codeOut[j][i]) { gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3); } } } } else { System.err.println("QRCode content bytes length = " + contentBytes.length + " not in [ 0,120 ]. "); return -1; } // Image img = ImageIO.read(new File(ccbPath));// 实例化一个Image对象。 // gs.drawImage(img, 47, 54, null); // gs.setColor(Color.BLUE); // gs.setFont(new Font("微软雅黑", Font.BOLD, 18)); // gs.drawString("交享越", 50, 70); // gs.dispose(); bufImg.flush(); // 生成二维码QRCode图片 File imgFile = new File(imgPath); ImageIO.write(bufImg, "png", imgFile); } catch (Exception e) { e.printStackTrace(); return -100; } return 0; } public static void main(String[] args) { // String imgPath = "F:/TDDOWNLOAD/Michael_QRCode.png"; // String encoderContent = "123131"; // TwoDimensionCode handler = new TwoDimensionCode(); // handler.encoderQRCode(encoderContent, imgPath, "png"); // // try { // // OutputStream output = new FileOutputStream(imgPath); // // handler.encoderQRCode(content, output); // // } catch (Exception e) { // // e.printStackTrace(); // // } // System.out.println("========encoder success"); // // String decoderContent = handler.decoderQRCode(imgPath); // System.out.println("解析结果如下:"); // System.out.println(decoderContent); // System.out.println("========decoder success!!!"); // TwoDimensionCode // .createQRCode( // "http://jxy.misuland.com//jxy_manager//downLoadAction!downLoad.action?path=jxy_android.apk", // "F://jxy_android.png", // "C://Documents and Settings//Administrator//My Documents//My Pictures//image//white.jpg"); TwoDimensionCode.createQRCode("http://localhost:8080//jxy_manager//downLoadAction!downLoad.action?path=jxy_android.apk", "F://jxy_android.png", "C://Documents and Settings//Administrator//My Documents//My Pictures//image//white.jpg"); TwoDimensionCode.createQRCode("http://localhost:8080//jxy_manager//downLoadAction!downLoad.action?path=jxy_ios.apk", "F://jxy_ios.png", "C://Documents and Settings//Administrator//My Documents//My Pictures//image//white.jpg"); } } 所需jar包可以在这个地址下载http://download.csdn.net/detail/daixinmei/5974269
原创文章,作者:奋斗,如若转载,请注明出处:https://blog.ytso.com/10608.html